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English
Indoor Unit Installation (1)
5.
Wiring
• Lift the sensor securing plate, remove the front metal plate cover, and connect the branch wiring to the terminal block.
1) Strip wire ends (15mm).
2) Connect the power supply wire to the terminal block of main wiring box securely.
3) Connect the earth wires to the corresponding terminals.
4) Pull wires to make sure that they are securely latched up, then retain wires with wire retainer.
5) Make sure that the wires do not come in contact with the metal conduit for the heat exchanger.
WARNING
• Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating,
electrical shock, or fire.
•
Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc.,
from the terminal block.) Doing so may cause electric shock or fire.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
CAUTION
• Carefully run the wires connecting to the sub electrical wiring box so that the wires will not come in contact with the copper
pipe. If the wires come in contact with the copper pipe, water drops may enter the sub electrical wiring box and the unit may
malfunction.
• Be sure to connect the wires correctly. An incorrect connection may damage components and make it impossible to
operate or use the unit.
• When connecting the wires to the terminal block, be sure to curl the wire ends as shown in the following illustration and
connect each wire to the corresponding terminal from the same direction. Furthermore, make sure that the right
dimensions of the wire ends stripping are kept.
• If the stranded wires must be used, make sure to use the round crimp-
style terminal for connection to the power supply terminal block. Place
the round crimp-style terminals on the wires up to the covered part and
secure in place.
1
2
3
1
2
3
H05RN
Shape wires so
that the front
metal plate cover
will fit securely.
Firmly secure wire
retainer so that
wires sustain no
external stress.
Terminal block
Electrical component box
Firmly fix the wires with the
terminal screws.
Wire retainer
Use 0.75mm
2
wires.
Make sure that the wires do not
come in contact with the metal
conduit for the heat exchanger.
Connect
the Faston
terminal
here.
Bundle the wires
with a twist tie and
carefully run the
wires so that the
wires will not come
in contact with the
copper pipe.
Earth wire
Power supply wire
From the sub electrical wiring box
To the sub electrical
wiring box
Safety
breaker
Earth leakage
circuit breaker
Power supply
50Hz 220-240V
60Hz 220V
Earth
<Good>
<Wrong>
<Wrong>
[Dimensions of the
wire ends stripping]
20mm
10mm
Stranded Wire
Round crimp-style
terminal
